The main product of the Top Connect is TravelSim, an international roaming GSM card, which allows travellers around the globe to have one cell phone number everywhere they go. It is a callback service, which picks up the call, routes it to the number dialled and calls back, connecting the two ends of the line. TravelSim has over 3.2 million customers and is adding 50 000 customers a month, continuously attracting new distributors and being used under different brands all around the globe (for example, in Latvia and Lithuania Top Connect operates under the name CSC Telecom).